Stiver S I
Neurosurgical Service, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
Neurosurg Clin N Am. 1999 Jul;10(3):485-501.
Microarteriovenous malformations (micro-AVMs) are a subgroup of brain AVM with a nidus diameter of less than 1 cm. Although many micro-AVMs may appear angiographically occult on cursory review, careful analysis will often reveal a subtle diagnostic feature. Micro-AVMs present with intracranial hemorrhages that are generally large and associated with significant neurologic impairment. An awareness of these lesions as a possible source of hemorrhage in a young person is critical. In general, micro-AVMs are eminently resectable lesions and patient outcome is determined primarily by the hemorrhage that brings them to medical attention.
微动静脉畸形（微小动静脉畸形）是脑动静脉畸形的一个亚组，其病灶直径小于1厘米。尽管许多微小动静脉畸形在初步检查时血管造影可能显示隐匿，但仔细分析通常会发现细微的诊断特征。微小动静脉畸形表现为颅内出血，通常出血量较大，并伴有严重的神经功能损害。认识到这些病变可能是年轻人出血的一个来源至关重要。一般来说，微小动静脉畸形是非常适合切除的病变，患者的预后主要取决于导致其就医的出血情况。
